import axios from "axios";
import { MessageBox, Message } from "element-ui";
import store from "@/store";
import { getToken } from "@/utils/auth";

// create an axios instance
const service = axios.create({
  baseURL: process.env.VUE_APP_BASE_API, // url = base url + request url
  // withCredentials: true, // send cookies when cross-domain requests
  timeout: 8000 // request timeout
});

// request interceptor
service.interceptors.request.use(
  config => {
    // do something before request is sent

    if (store.getters.token) {
      // let each request carry token
      // ['X-Token'] is a custom headers key
      // please modify it according to the actual situation
      config.headers["Authorization"] = "Bearer " + getToken();
      config.headers["Content-Type"] = "application/json";
    }
    return config;
  },
  error => {
    // do something with request error
    console.log(error); // for debug
    return Promise.reject(error);
  }
);

// response interceptor
service.interceptors.response.use(
  /**
   * If you want to get http information such as headers or status
   * Please return  response => response
   */

  /**
   * Determine the request status by custom code
   * Here is just an example
   * You can also judge the status by HTTP Status Code
   */
  response => {
    const code = response.data.code;
    if (code === 401) {
      store.dispatch("user/resetToken");
      if (location.href.indexOf("login") !== -1) {
        location.reload(); // 为了重新实例化vue-router对象 避免bug
      } else {
        MessageBox.confirm("登录状态已过期，您可以继续留在该页面，或者重新登录", "系统提示", {
          confirmButtonText: "重新登录",
          cancelButtonText: "取消",
          type: "warning"
        }).then(() => {
          location.reload(); // 为了重新实例化vue-router对象 避免bug
        });
      }
    } else if (code === 6401) {
      store.dispatch("user/resetToken");
      MessageBox.confirm("登录状态已过期，您可以继续留在该页面，或者重新登录", "系统提示", {
        confirmButtonText: "重新登录",
        cancelButtonText: "取消",
        type: "warning"
      }).then(() => {
        location.reload(); // 为了重新实例化vue-router对象 避免bug
      });
      return false;
    } else if (code === 400 || code === 403) {
      Message({
        message: response.data.msg,
        type: "error",
        duration: 5 * 1000
      });
    } else if (code !== 200) {
      console.error("请求服务器结果出错:", response.data);
      Message({
        message: response.data.msg,
        type: "error"
      });
      return Promise.reject("error");
    } else {
      return response.data.data;
    }
  },
  error => {
    if (error.message === "Network Error") {
      Message({
        message: "服务器连接异常，请检查服务器！",
        type: "error",
        duration: 5 * 1000
      });
      return;
    }
    console.log("err" + error); // for debug

    Message({
      message: error.message,
      type: "error",
      duration: 5 * 1000
    });

    return Promise.reject(error);
  }
);

export default service;
